What was found
THE INTAKE VALVE SEAT WAS FOUND NOT SEATED INTO THE CYLINDER HEAD PROPERLY. IF UNDETECTED, THE SEAT AND VALVE WOULD LEAK AFTER ONE TO TWO HOURS OF OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THE INTAKE VALVE SEAT WAS FOUND NOT SEATED INTO THE CYLINDER HEAD PROPERLY. IF UNDETECTED, THE SEAT AND VALVE WOULD LEAK AFTER ONE TO TWO HOURS OF OPERATION.